115530320 has 40 divisors (see below), whose sum is σ = 269081736. Its totient is φ = 46130688.

The previous prime is 115530263. The next prime is 115530323. The reversal of 115530320 is 23035511.

It can be written as a sum of positive squares in 4 ways, for example, as 10816 + 115519504 = 104^2 + 10748^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 115530292 and 115530301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115530323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67394 + ... + 69086.

Almost surely, 2^115530320 is an apocalyptic number.

115530320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115530320 is an abundant number, since it is smaller than the sum of its proper divisors (153551416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115530320 is a wasteful number, since it uses less digits than its factorization.

115530320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559 (or 2553 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 115530320 is about 10748.5031516021. The cubic root of 115530320 is about 487.0407790372.

Adding to 115530320 its reverse (23035511), we get a palindrome (138565831).

The spelling of 115530320 in words is "one hundred fifteen million, five hundred thirty thousand, three hundred twenty".